Sometimes, specific information about the UFS controller revision is
required in order to determine certain operations or execute
controller dependent quirks.
In order to avoid reading the controller revision multiple times,
we simply read it once and save this information in internal structure.
Signed-off-by: NYaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: NGilad Broner <gbroner@codeaurora.org>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>